Clutch-operating mechanism.



G. J. RUMEN'S.

CUHCH OPERAHNG MECHAMSM,

APFLiCATSQN TILED man we,

Pmmea (m. 23,1917.

. 3 SHEETSSHEET I.

47" sw g j G-J. HUMENS. CLUTCH OPERATING MECHANISM. APPLICATION HLED main. ms.

Patented Oct. 23, 19171 3 SHEETS-SHEET 2.

6.1. RUMEN'S.

CLUTCH OPERAHNG MECHANISM.

APPLICATION HLED A116. 1.1, ms.

1,24%,376. Patented Oct. 23,1917.

diumngs i Thi T FF GEQRGE I. QUEENS, 6F BALTIMGFJE, MARYLAND, ASEIG-NOB TO GEORGE MILLER, OF BALTIMQRE, MARYLAND.

GLUTGH-OPERATING MECHANISM.

Specification of Letters Patent.

Patented Oct. 23, 1917.

Application filed August 11, 1316. Serial No. 114,480.

To all whom it may concern:

Be it known that I, GEORGE J. Runners, a subject of the King of Great Britain, residing at the city of Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Clutch-Operating Mechanism; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to release mechanism for hoists for automobile trucks, and has for an object to provide improved means for-releasing the clutch or otherwise interrupting the hoisting motion of the body the truck when the body has been elevated to the required distance or angle for dumping.

With the foregoing and other objects the invention comprises certain novel construe tions, combinations and arrangements of parts as will be hereinafter more fully described and claimed.

In the drawings Figure 1 is a view in side elevation of a conventional motor truck of the -dumping type, certain parts being broken away to show *the relation of the improved mechanism'which forms the subj cot-matter of this invention.

Fig. 2 is a sectional view in a vertical plane taken longitudinally of the truck,

showing. some of the parts.

Fig. 3 is a top plan view of a fraction of the chassis, showing the operating mechanism and showing line 9 as the plane of Fig. 2.

Fig. 4. is a view of the gearing to which is connected the winding apparatus.

Fig. 5 is a view in. edge elevation of the chain-winding sprocket.

Fig. 6 is a view in side elevation of a modified form. wherein the connecting gear is detached as distinguished from throwing out the clutch and showing the gearing out of engagement. v

hi 7 is a view similar to Fig. 6, showing the gear in engagement.

Fig. 8 is a view similar to Figs. 6 and 7, snowing a lock for the operatmg mechanism.

Fig. 9 is a view of a modified form of drum and operating mechanism.

Fig. 1G is a view of a different embodiment of the means of attaching the cable to the actuating mechanism.

Like characters of reference designate corresponding parts throughout the several views.

The improved device which forms the sub3ect-matter of this application is adapted to be attached to a dumping truck of substantially the usual and ordinary typecomprising a chassis frame 15, having a motor 16, clutch 1?, drive shaft 18, all of substantially the usual and ordinary type. Mounted upon the chassis is a body 19, the rear end of which is adapted to slide relative to the chassis, a slotted link being provided for that purpose. The forward end of the body is raised to dumping position by means of a walking beam 21 pivoted upon the upright 22, and chain 23 connected with the walking beam at one end at 24 while the opposite end of the walking beam at 25 is pivotally connected with the body 19. It is to be understood of course that there are two of such walking beams, chains, uprights, and other parts so that the body is lifted symmetrically.

For the purpose of lifting the body the chain 23 after running under an idler 26 and also an idler 27 spaced therefrom runs over a sprocket 28. The sprocket 28 is mounted upon a shaft 29 connected by a train of gears 30 with a shaft 31, which in turn is connected by means of a bevel gear 32 with the drive shaft 83, which is in turn intergeared at 34 with the drive shaft 18. It is obvious that when the drive shaft 33 is rotated, therefore, through the medium of the train of gears 30, the shaft 29 is rotated to wind'in the chain 23 and lift the body, the pivot 25 following the are as shown at Fig. l.

The shaft 31 is preferably provided with a ratchet 35 and a pawl 36 is conveniently located to interact with said ratchet 35 to hold the body in raised position, when such raised position has been assumed. Also a brake 8 is adapted to engage a brake disk 38 upon one of the shafts of the train of gears 30. 1

- So far the mechanism as described is found upon trucks already upon the market.

One of the train of gears 30, individually numbered 39, is connected with a shaft 4:0

which'carries a diiierential drum 41 upon which is wound a cable 42. In the type line position shown at Fig. 2.

shown at all the figuresexcept Figs. 9 and 10 the cable 42 passes about apulley 43 which is connected by means of a link- 44, to the lever 45. It is obvious therefore that as the body is raised the differential drum will cause the shortening of the cable 42 to move the lever '45 in the direction indi- 1 cated by the arrow at Fig. 7 to the dotted line position shownfat' Fig. 2 against the tension ofthespring 46. i In the type shown at Figs. 1 andi2, a rod 47 is mounted slida-bly relative to the lever 45 and is provided with an'pdjustable stop 48, so that at the beginning of itstravel from the full line position shown at Figs. 1 and 2the lever 45 does not move the rod 47 but eventually "engages the stop 48 and moves the stop 'and'rod' 4'? to the dotted ing drum 41 a plain winding drum as shown at 41' at Figs. 9 and 10 may be employed and the cable wound directly thereabout, leaving a slack. As shown at Fig. '9 the cable 42 passes around the pulley 43 as in the other type, and the link 44 is connected to the lever 45, but in the type shown at Fig. 10 the cable 42 is connected directly to the lever 45, the other action being the same .as heretofore described,

Instead of attaching the operating mechanism to throw out the clutch, a different type ma be employed wherein a gear casing 51 accommodates the drive shaft 18 with a gear 52 mounted thereon, while a shaft 53 is mounted to slide longitudinally through the casing 51, and connected by universal joint with the shaft 33, the equivalent of the drive shaft 33 operating the train of gears 30. Upon the shaft 53 is mounted a gear 54 positioned to at times intermesh with the gear 52 as shown in Fig. 7, and at times to be slidably disengaged from such intermeshing as shown at Fig. 6. The sliding action of the gear 54 is accomplished by means of a lever 55 and connecting link 56 located adjacent the seat of the machine. To maintain the parts in operative positions a spring 57 is employed connected with a lever 58, one end of which is connected by a link 59 with the lever 55, and the other end of the lever connected with a rod 47' the equivalent of the rod 47, similarly engaging the lever 45. The position of. the

spring 57 is such that in moving the gear into and out of engagement the tension passes the center of the lever 58, as indicated at Figs. 6 and to hold such we actuated by the spring 62 employed, such spring 62 being mounted on aurod 63 also,

' ing ,beam at either limit of its position.

Instead of gmp'loying such 'spring for such purpose, however, the rod: 47" maybe pro vided 'with'fa. notch and a .detent 61 the'paw-l fil, and whenthe stop,':64..is'en-.

gagedthe pawl 61 is also disengaged from the-notch 60. In -;tl1is type-as' shown at Fig. 8a spring 65 is mounted-upon the rod 47" so that as soon as the lever 45 engages thestop 64 to release the pawl 61 the spring 62 serves to instantly throw the gears out: of engagement, which has the same effect as spring 57 whenpassing by-the centerof the lever 58. v 1 w v It is believed that from the foregoing description of the several parts and their individual operations, the operation of the complete structure will "be fully and abso- What is claimed as new is:

1. The combination with a dumping truck employing a 'motor-dr'ive dumping mechanism, of a drum connected with a rotating part ofthe driving mechanism, a cable wound about the drum, and means connected with the cable for releasing the mechanism transmitting power from the motor to the hoisting mechanism. I

2. The combination with a dumping truck embodying a motor-driven hoist, of a slid ing connecting member introduced into the. transmission'mechanism, a drum actuated: by a rotating "part of the hoisting mechanism, a cable, Wound about the drum, and

means connecting the cable with the slidingconnecting member of the transmission mechanism for releasing the sliding parts when a predetermined elevation has been reached. Y

3. The combination with a dumping truck embodying a motor-driven hoist, of sliding means for connecting the hoisting mecha? nism with the motor-drive, a winding drum carried by one of the rotating parts of the hoisting mechanism, a cable carried by the winding drum, a pivoted lever connected with the cable, and a rod connected With the sliding connecting mechanism and slidable' relative to the-lever.

4. The combination with a dumping truck embodying a motordriven hoisting and transmission mechanism, of a sliding part interposed in thetransmission mechanism, a lever pivoted to the truck, a rod'connected with the sliding part and slidably connected with the lever, a winding drum carried by one of the rotating partsicf the hoisting} 13o lutely understood without further description thereof.

mechanism and-a cable connected with the lever and wound about the drum.

- 5'." The combinatio zi' with a dumping truck having 'a. motor-drivenghoistiand transmission mechanism, of ,a sliding part interposed in-the transmission mechanism, means to lock the'sliding part into and out of engagement inthetransmissionme a rod connected'withthe slidingpart, a lever pivof its dumping. movement. a

oted upon' the truck and having slidable connection with the rod/and means carried; -by the hoisting'mechanismfor actuating the lever when the body has moved to the limit 6. The combination with embodying a motor-driven hoist and transmission mechanism, of a differential winding drum connected with a rotating partof the hoistga cable wound about the differential drum; and mcan'sconnected with' the cable for disengaging the transmission a dumping truckmission mechanism, of a lever pivoted upon the truck, a pulley connected with the lever, a differentialwinding drum connected with oneof the-rotating parts of the hoist, a cable wound about the differential drum and passing over the pulley, and means connecting the lever with the transmission mechanism whereby thetran'smission mechanism is disengaged when the lever is determined position. I

In testimonfy whereof I aflix mysignature presence 0 twowitnesses. GEORGE J. RUMENS.

Witnesses:

Wonmmowon R. Horasvv LESTER 'A. BnnsoHsn.

moved to a pre- 

